Spontaneous ignition of low-concentration nano-sized Al-water slurry

    Authors

    T. X. Phuoc;R. H. Chen

    Comments

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    Abbreviated Journal Title

    Appl. Energy

    Keywords

    Spontaneous ignition; Al-water slurry; COMBUSTION; ALUMINUM; NANOFLUIDS; HYDROGEN; ENERGY; Energy & Fuels; Engineering, Chemical

    Abstract

    Spontaneous ignition of a nano-sized aluminum (Al) particles-water slurry using a hot plate was investigated. The aluminum weight fractions were 17% and 27%. The hot plate temperatures ranged from 303 to 343 K. For all experimental conditions used, ignition was observed to occur at about 321 K and it was followed by a rapid temperature increase to above the boiling temperature of the water. Although the thermal runaway condition did not occur until the slurry reached a temperature of 321 K. it was able to react at a temperature as low as 303 K and develops sufficient heat for the slurry to reach the ignition condition. The ignition kinetic data were determined showing that E/R = 28619.66 (K) and k = 1.2644 x 10(37) K/s for the slurry containing 17% aluminum and, the value of k was about 2.398 x 10m(37) K/s for those having 27% aluminum by weight. Published by Elsevier Ltd.

    Journal Title

    Applied Energy

    Volume

    101

    Publication Date

    1-1-2013

    Document Type

    Article

    Language

    English

    First Page

    567

    Last Page

    571

    WOS Identifier

    WOS:000312617400063

    ISSN

    0306-2619

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